US6708477B2 - Crop lifter for reaping systems of harvesting machines - Google Patents

Crop lifter for reaping systems of harvesting machines Download PDF

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Publication number
US6708477B2
US6708477B2 US10/139,903 US13990302A US6708477B2 US 6708477 B2 US6708477 B2 US 6708477B2 US 13990302 A US13990302 A US 13990302A US 6708477 B2 US6708477 B2 US 6708477B2
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US
United States
Prior art keywords
support bar
holder
reaping
area
lifter
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Expired - Lifetime
Application number
US10/139,903
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English (en)
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US20020166314A1 (en
Inventor
Gustav Schumacher
Friedrich-Wilhelm Schumacher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gebr Schumacher Geraetebau GmbH
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Gebr Schumacher Geraetebau GmbH
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Application filed by Gebr Schumacher Geraetebau GmbH filed Critical Gebr Schumacher Geraetebau GmbH
Assigned to SCHUMACHER, GEBR. reassignment SCHUMACHER, GEBR. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SCHUMACHER, FRIEDRICH-WILHELM, SCHUMACHER, GUSTAV
Publication of US20020166314A1 publication Critical patent/US20020166314A1/en
Application granted granted Critical
Publication of US6708477B2 publication Critical patent/US6708477B2/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D65/00—Grain-crop lifters
    • A01D65/02—Lifting fingers

Definitions

  • the invention relates to a crop lifter for harvesting machine reaping systems which include a bed plate with projecting reaping fingers to which the crop lifters are attached.
  • reaping fingers are distributed along the bed plate.
  • the fingers guide a cutter bar and form the counter cutting edge for the cutting edges of the reaping blades attached to the reciprocating cutter bar.
  • crop lifters may be used to lift the cereal.
  • These crop lifters include a support bar with its first end retained on the bed plate.
  • the crop lifter is supported, via a holder and holding means attached thereto, at the tip of the reaping finger.
  • the second end of the support bar is connected to a grain lifter.
  • the grain lifter is arranged at an angle to the support bar.
  • the holder holds the crop lifter parallel to the driving direction of the harvesting machine.
  • the support bar is preferably a spring steel.
  • the crop lifter with its tip formed by the connection area of the grain lifter with the support bar, can be guided on the ground and follow the ground unevennesses.
  • the holder moves relative to the tip of the reaping finger.
  • the holder itself is riveted to the support bar.
  • Modem reaping systems for harvesting machines include reaping fingers arranged, in most of the cases, inclined in their working position in a range of 12° to 18° downwards to the ground.
  • the angle achieves a corresponding gap with respect to the ground for the cutting tools tray following in a direction opposite to the movement of the harvesting machine in the reaping operation. Also, the angle enables sufficiently low mowing.
  • the crop lifter support bar in the mounted condition is also inclined to the ground for the same reason.
  • the inclination is changed to a direction of the
  • the inclination towards the ground has to be changed at least support bar parallel to the ground. If the angle is not changed, the crop lifter would contact the ground too steeply and would be pushed into the ground. Thus, the support bar is bent upwards.
  • the support bars are often bent upwards in the area of or at the holder to achieve a gap between the holder and the gliding portion close to the grain lifter of the support bar.
  • the support bars are then directed downwards up to the gliding portion and thus down to ground contact.
  • the gliding portion rests on the ground.
  • This gliding portion is formed crosshead shoe-like and the grain lifter is welded to its tip.
  • the crosshead shoe-like portion of the support bar is arched downwards, when seen in cross-section, so that its side edges do not cut into the ground when the crop lifter is loaded sideways when driving around bends.
  • Such a crop lifter is described in GB-PS 1 396 078. Its support bar is archedly profiled downwards in the gliding portion and upwards in the following portion in the direction towards the holder. The transition from the downwards directed arching to the upwards directed arching is achieved between the portion used as a gliding portion of the support bar and its portion rising towards the holder. However, on the transition there is no reinforcement of the support bar by a profile. Here, the support bar buckles, when the grain lifter is heavily loaded
  • a crop lifter is described in DE-PS 1 188 853.
  • the support bar is attached by a holder above a reaping finger.
  • the support bar is not provided with a profile in its gliding portion. Only its portion steeply rising to the holder is provided with a profile.
  • the support bar has, because of this, spring characteristics only in the gliding portion parallel to the ground.
  • a crop lifter is described in DE-OS 25 31 435.
  • the support bar is provided with a profile archedly downwards or upwards in the area of the holder.
  • the support bar is not provided with a profile from the grain lifter attachment area to the holder.
  • the present invention provides a crop lifter with the end of the support bar, close to the attachment area of the grain lifter, even under stronger loading of the grain lifter, remains approximately constant in its orientation to the ground.
  • the harvesting machine reaping system has a bed plate with projectingly attached reaping fingers to which a crop lifter is attached.
  • a support bar has a first end and a second end. The first end serves to retain the support bar on the bed plate.
  • a grain lifter is connected to the second end of the support bar.
  • a holder is attached on the support bar between the first end and the second end. Retaining means is attached to the holder.
  • the retaining means is arranged at a distance to the support bar and is supportable on the reaping finger.
  • the holder, together with the retaining means defines a free motion gap. The gap enables an approximation of the support bar to the reaping finger.
  • the support bar is formed with a rigid flexure in an area between the second end and the holder. Also, the support bar is formed with an elastic flexure in an area between the holder and the first end.
  • Springing of the support bar is extremely limitedly or completely eliminated in the area between the end of the support bar, attached to the grain lifter, and the holder. If the gliding portion of the support bar of the crop lifter is pushed upwards by a ground elevation, the support bar does not spring upwards directly behind the grain lifter. Also, there is very limited springing in the area between the gliding portion and the holder. However, the springing area is displaced behind the holder to the area between the holder and the first end of the support bar. Vertical movement is provided vertically in the holder relative to the tip of the reaping finger. This movement enables the tip of the crop lifter to be lifted upwards up to 10 cm relative to the tip of the reaping finger.
  • the tip can avoid, due to the movement, ground elevations.
  • the gliding portion of the support bar of the crop lifter remains in contact to the ground over a longer portion.
  • wear is reduced.
  • This portion when loaded is also not guided out off the crop to be harvested.
  • the support bar is also more stable in this area due to a more or less strong contoured profile corresponding to the requirements for a rigid formation.
  • a weaker raw material can be used which leads to a reduction of cost.
  • the support bar is formed with a rigid flexure, by a contour in the area between the second end and the holder.
  • the immediate area at the second end is already sufficiently reinforced by the attachment of the grain lifter on the support bar.
  • the provision of a profile or contour is applied in the crosshead shoe-like area.
  • the support bar crosshead shoe-like area abuts the ground and extends to the holder.
  • the elastic flexure design for the portion between the holder and the first end means that a deflection of this portion takes place when the grain lifter is loaded in a way which exceeds the normal loading during the normal reaping on a level surface.
  • the support bar should move closer to the reaping finger within the gap of free motion in the holder.
  • the support bar is arched in the portion from the second end or the attachment area of the grain lifter on the support bar up to the holder.
  • FIG. 1 shows a side view of a crop lifter attached on a bed plate and reaping finger of a reaping system of a harvesting machine
  • FIG. 2 is an enlarged sectional view of FIG. 1 along Line II—II thereof.
  • FIG. 3 is an enlarged sectional view of FIG. 1 along Line III—III thereof.
  • FIG. 1 a bed plate 1 is visible in a schematically representation.
  • a reaping finger 2 projects from the bed plate 1 .
  • the reaping finger 2 is mounted, via a screw 3 , on the bed plate 1 .
  • Further reaping fingers are arranged on the bed plate 1 with a distance between each other when viewed into the drawing plane or projecting therefrom.
  • the reaping fingers 2 guide a cutter bar 4 .
  • the cutter bar 4 has reaping blades to cut the crop to be harvested.
  • the reaping finger 2 is inclined at an angle of around 18° with its tip to the ground 6 .
  • the reaping table may be lowered to allow cutting as low as possible, without lowering the reaping table so far that the cutting tools tray 7 abuts the ground 6 .
  • the first end 8 of a support bar 5 is made from a flat material.
  • the first end 8 is attached on the bed plate 1 via a fork-like formation.
  • a washer with an annular groove, attached via the screw 3 secures the first end on the bed plate 1 .
  • the second end 9 of the support bar is distanced from the first end 8 .
  • a grain lifter 10 is attached on the support bar 5 at the second end 9 .
  • the grain lifter 10 extends at an angle to the support bar 5 and rises in the direction towards the bed plate 1 .
  • the support bar 5 is supported by a holder 11 on the reaping finger 2 or on its upper face facing away from the support bar 5 .
  • the holder 11 has two parallel extending legs 12 , 13 .
  • the legs 12 , 13 are connected to each other.
  • a reinforcement plate 15 abuts the face of the support bar 5 facing away from the grain lifter 10 .
  • the reinforcement plate 15 is connected together with the holder 11 by rivets 14 to the support bar 5 .
  • the reaping finger tip 16 of the reaping finger 2 is received between the two legs 12 and 13 . Bores, are arranged in the two legs 12 , 13 in pairs with constant distance to the grain lifter-sided face.
  • the bores enable the holder 11 to achieve different settings which, in turn, enable different settings of the support bar 5 to the reaping finger 2 .
  • a pin 17 is inserted through the pair of bores. The pin 17 is supported on the upper face of the reaping finger 2 distanced from the support bar 5 .
  • the reaping finger tip 16 is guided between the two legs 12 , 13 .
  • the reaping finger tip 16 carries out a relative movement towards the support bar 5 , as represented by the double arrow of FIG. 2 .
  • a springing movement of the support bar 5 is possible at ground unevennesses.
  • the attachment-sided portion of the support bar 5 between the holder 11 and the first end 8 , is designated by the reference numeral 18 .
  • This attachment-sided portion 18 is elastic with respect to flexure. Thus, when higher forces act on the grain lifter, this portion 18 deforms.
  • the attachment-sided portion 18 of the support bar 5 towards the first end 8 in the area of the screw 3 is clamped. In the area of the holder 11 the support bar 5 comes closer to the reaping finger 2 .
  • the grain lifter-sided portion 19 of the support bar 5 is rigid with respect to flexure. When loadings are produced which lead to an elastic bending of the attachment-sided portion 18 , this grain lifter-sided portion 19 experiences no or only an insignificant deformation. Sufficient rigidity is achieved in the area of the second end 9 via attachment of the grain lifter 10 on the support bar 5 . The area of the support bar following this attachment up to the holder 11 , as can be seen from FIG. 3, is arched, to achieve the necessary rigidity. This arching extends over the guided crosshead shoe-like portion from the ground 6 , up to the area extending from the ground to the holder 11 .

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Harvester Elements (AREA)
  • Outside Dividers And Delivering Mechanisms For Harvesters (AREA)
  • Combines (AREA)
  • Harvesting Machines For Root Crops (AREA)
US10/139,903 2001-05-12 2002-05-07 Crop lifter for reaping systems of harvesting machines Expired - Lifetime US6708477B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10123248A DE10123248C1 (de) 2001-05-12 2001-05-12 Ährenheber für Erntemaschinenmähsysteme
DE10123248.9-23 2001-05-12

Publications (2)

Publication Number Publication Date
US20020166314A1 US20020166314A1 (en) 2002-11-14
US6708477B2 true US6708477B2 (en) 2004-03-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US10/139,903 Expired - Lifetime US6708477B2 (en) 2001-05-12 2002-05-07 Crop lifter for reaping systems of harvesting machines

Country Status (10)

Country Link
US (1) US6708477B2 (OSRAM)
EP (1) EP1256271B1 (OSRAM)
AT (1) ATE310378T1 (OSRAM)
BR (1) BR0201710A (OSRAM)
CA (1) CA2385988C (OSRAM)
DE (2) DE10123248C1 (OSRAM)
DK (1) DK1256271T3 (OSRAM)
HU (1) HU228241B1 (OSRAM)
RU (1) RU2277321C2 (OSRAM)
UA (1) UA75874C2 (OSRAM)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080196379A1 (en) * 2007-02-21 2008-08-21 Glen Alvin Anthony Yanko Crop lifting apparatus
US20080209883A1 (en) * 2005-01-06 2008-09-04 Dave Dietrich Crop lifter and crop accessory attachment
US20090183483A1 (en) * 2006-10-02 2009-07-23 Dave Dietrich Crop lifter pans
US20110138764A1 (en) * 2008-02-04 2011-06-16 Ardon Herman Crop lifter pans
US20110179760A1 (en) * 2008-08-08 2011-07-28 Dave Dietrich Offset guard bolt attachment system
US8539744B2 (en) 2005-01-06 2013-09-24 Dave Dietrich Crop lifter and crop accessory attachment

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10113107B4 (de) * 2001-03-15 2010-01-21 Gebr. Schumacher Gerätebaugesellschaft mbH Ährenheber für Erntemaschinenmähsysteme
DE102009039670B9 (de) * 2009-09-02 2011-07-14 Gebr. Schumacher Gerätebaugesellschaft mbH, 57612 Ährenheber
CA2748754C (en) * 2011-08-11 2017-11-07 Dave Dietrich High rise crop lifter
DE102012100302A1 (de) * 2012-01-13 2013-07-18 Gebr. Schumacher Gerätebaugesellschaft mbH Heber für Erntegut
ES2651992T3 (es) 2015-06-12 2018-01-30 Gebr. Schumacher Gerätebaugesellschaft mbH Carril de soporte de un levantaespigas para cosechas
DE102016112052A1 (de) * 2016-06-30 2018-01-04 Claas Selbstfahrende Erntemaschinen Gmbh Ährenheber
PL3732951T3 (pl) 2019-04-30 2023-04-11 SMF - Holding GmbH Podbieracz do plonów
DE202019102446U1 (de) 2019-04-30 2020-07-31 SMF - Holding GmbH Tragschiene eines Ährenhebers für Erntegut

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE191691C (OSRAM) 1906-07-20 1907-10-11
US1862775A (en) * 1928-11-28 1932-06-14 Caterpillar Tractor Co Pick-up guard adapter
DE1188853B (de) 1961-05-03 1965-03-11 Reinhold Claas AEhrenheber fuer insbesondere Maehdreschern zugeordnete Schneidwerke
DE1507366A1 (de) 1965-09-07 1969-06-26 Gustav Schumacher AEhrenheber fuer Maehdrescher und Bindemaeher
US3579967A (en) * 1968-09-18 1971-05-25 Gustav Schumacher Grain-lifter for grain-cutting assemblies
US3845832A (en) 1971-12-06 1974-11-05 Darf Corp Power take-off connection
GB1396078A (en) 1972-06-30 1975-05-29 Fahr Ag Maschf Combine harvesters with pivotable cutting platforms
DE2531435A1 (de) 1975-07-14 1977-02-03 Schumacher Aehrenheber fuer maehwerke von erntemaschinen
US4295328A (en) 1978-08-12 1981-10-20 Schumacher Gustav Holding means for grain lifters, support skids and the like
DE3300769A1 (de) 1983-01-12 1984-07-12 Gustav Schumacher Ii Aehrenheber fuer fingerbalkenmaehwerke von erntemaschinen
US4622840A (en) 1983-06-20 1986-11-18 Neapco, Inc. Method for drawing telescoping tubes for torque transmission
DE4323053A1 (de) 1993-07-12 1995-01-26 Rasspe Soehne P Haltevorrichtung an Ährenhebern für Mähbalken
DE4445634A1 (de) 1994-12-21 1996-06-27 Walterscheid Gmbh Gkn Kupplung
US5681222A (en) 1995-02-28 1997-10-28 Weasler Engineering, Inc. Torque overload clutch coupler for a torque transmitting driveline
WO1999045758A1 (de) * 1998-03-10 1999-09-16 Gustav Schumacher Ährenheber
DE10113107A1 (de) * 2001-03-15 2002-09-19 Schumacher Gmbh Geb Ährenheber für Erntemaschinenmähsysteme
GB2376405A (en) * 2001-06-11 2002-12-18 Gustav Schumacher Crop lifter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2142153C2 (de) * 1971-03-08 1984-09-20 Gustav Schumacher Ii Gleitkufe für Mähwerke von Erntemaschinen
SU1440413A1 (ru) * 1986-12-19 1988-11-30 Украинский научно-исследовательский институт механизации и электрификации сельского хозяйства Стеблеподъемник уборочной машины
RU2045883C1 (ru) * 1992-11-24 1995-10-20 Всероссийский научно-исследовательский институт кормов им.В.Р.Вильямса Стеблеподъемник

Patent Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE191691C (OSRAM) 1906-07-20 1907-10-11
US1862775A (en) * 1928-11-28 1932-06-14 Caterpillar Tractor Co Pick-up guard adapter
DE1188853B (de) 1961-05-03 1965-03-11 Reinhold Claas AEhrenheber fuer insbesondere Maehdreschern zugeordnete Schneidwerke
DE1507366A1 (de) 1965-09-07 1969-06-26 Gustav Schumacher AEhrenheber fuer Maehdrescher und Bindemaeher
US3579967A (en) * 1968-09-18 1971-05-25 Gustav Schumacher Grain-lifter for grain-cutting assemblies
US3845832A (en) 1971-12-06 1974-11-05 Darf Corp Power take-off connection
GB1396078A (en) 1972-06-30 1975-05-29 Fahr Ag Maschf Combine harvesters with pivotable cutting platforms
DE2531435A1 (de) 1975-07-14 1977-02-03 Schumacher Aehrenheber fuer maehwerke von erntemaschinen
US4120138A (en) 1975-07-14 1978-10-17 Schumacher Gustav Grain lifter for the cutter mechanisms of harvesters
US4295328A (en) 1978-08-12 1981-10-20 Schumacher Gustav Holding means for grain lifters, support skids and the like
DE3300769A1 (de) 1983-01-12 1984-07-12 Gustav Schumacher Ii Aehrenheber fuer fingerbalkenmaehwerke von erntemaschinen
US4622840A (en) 1983-06-20 1986-11-18 Neapco, Inc. Method for drawing telescoping tubes for torque transmission
DE4323053A1 (de) 1993-07-12 1995-01-26 Rasspe Soehne P Haltevorrichtung an Ährenhebern für Mähbalken
DE4445634A1 (de) 1994-12-21 1996-06-27 Walterscheid Gmbh Gkn Kupplung
US5681222A (en) 1995-02-28 1997-10-28 Weasler Engineering, Inc. Torque overload clutch coupler for a torque transmitting driveline
WO1999045758A1 (de) * 1998-03-10 1999-09-16 Gustav Schumacher Ährenheber
US6442919B1 (en) * 1998-03-10 2002-09-03 Gustav Schumacher Grain lifter
DE10113107A1 (de) * 2001-03-15 2002-09-19 Schumacher Gmbh Geb Ährenheber für Erntemaschinenmähsysteme
GB2376405A (en) * 2001-06-11 2002-12-18 Gustav Schumacher Crop lifter

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080209883A1 (en) * 2005-01-06 2008-09-04 Dave Dietrich Crop lifter and crop accessory attachment
US8539744B2 (en) 2005-01-06 2013-09-24 Dave Dietrich Crop lifter and crop accessory attachment
US20090183483A1 (en) * 2006-10-02 2009-07-23 Dave Dietrich Crop lifter pans
US20080196379A1 (en) * 2007-02-21 2008-08-21 Glen Alvin Anthony Yanko Crop lifting apparatus
US7520119B2 (en) * 2007-02-21 2009-04-21 Ralph Mckay Industries Inc. Crop lifting apparatus
US20110138764A1 (en) * 2008-02-04 2011-06-16 Ardon Herman Crop lifter pans
US8196381B2 (en) 2008-02-04 2012-06-12 Dave Dietrich Crop lifter pans
US20110179760A1 (en) * 2008-08-08 2011-07-28 Dave Dietrich Offset guard bolt attachment system
US8220239B2 (en) * 2008-08-08 2012-07-17 Dave Dietrich Offset guard bolt attachment system

Also Published As

Publication number Publication date
CA2385988A1 (en) 2002-11-12
UA75874C2 (en) 2006-06-15
DK1256271T3 (da) 2006-04-03
DE50204994D1 (de) 2005-12-29
CA2385988C (en) 2009-11-03
EP1256271A1 (de) 2002-11-13
HUP0201596A2 (hu) 2003-08-28
US20020166314A1 (en) 2002-11-14
HU0201596D0 (OSRAM) 2002-07-29
RU2277321C2 (ru) 2006-06-10
RU2002112356A (ru) 2004-01-20
ATE310378T1 (de) 2005-12-15
HUP0201596A3 (en) 2004-06-28
BR0201710A (pt) 2003-03-25
DE10123248C1 (de) 2002-09-19
EP1256271B1 (de) 2005-11-23
HU228241B1 (en) 2013-02-28

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